Support disk assembly for a bearing of a spinning rotor

Abstract

A support disk assembly and a method of producing a support disk (1) for the bearing of a spinning rotor. The support disk assembly (1) has an exchangeable annular collar (4) that can be secured between fastening rings (5, 6, or 17). The collar (4) has side surfaces (8,9) that extend parallel and orthogonally to the center axis (M) of the support disk assembly in a radially inward annular region (P). The side surfaces (8,9) located in a radially outward annular region (K) of the collar (4) extend convergently and are partly clamped by flanges (14) on the fastening rings (5, 6, or 17), leaving the peripheral bearing surface (10) of the collar exposed for supporting engagement of the rotor shaft.

I claim: 
     
       1. A support disk assembly for use in a bearing assembly for a spinning rotor comprises a main body having a rim, an exchangeable annular collar, and collar-holding elements securable to the main body for fastening the collar to the rim thereof, wherein the annular collar (4) has at least one radially inner annular region (P) with side surfaces (8,9) that extend parallel to one another, and a radially outer annular region (K) with side surfaces that extend convergently, the outer annular region (K) having a smaller radial dimension than the inner annular region (P), and a peripheral bearing surface (10) adjacent the outer annular region (K). 
     
     
       2. The support disk assembly as defined by claim 1 wherein the parallel side surfaces (8,9) of the inner annular region (P) of the collar (4) are disposed orthogonally to a center axis (M) of the support disk (1). 
     
     
       3. The support disk assembly as defined by claim 1 wherein the inner annular region (P) has a radial dimension between 3 and 6 mm. 
     
     
       4. The support disk assembly as defined by claim 3 wherein the inner annular region (P) has a radial dimension of 4 mm. 
     
     
       5. The support disk assembly as defined by claim 1 wherein the collar-holding elements are fastening rings (5, 6, or 17) secured to the main body (2) of the support disk assembly (1) and have peripheral flanges (14) to at least partly clamp a radially-inward annular extent of the convergently extending side surfaces (8,9) of the annular collar (4). 
     
     
       6. The support disk assembly as defined by claim 1 wherein the convergently extending side surfaces of the outer annular region (K) of the collar (4) are disposed at an inclined angle (α) of about 45° or greater with respect to the adjacent parallel-extending side surfaces (8,9) . 
     
     
       7. The support disk assembly as defined by claim 6 wherein the angle of inclination α is approximately 75°.